It ain't easy being Alex's (
Lyndsy Fonseca) love interest on
"Nikita." Just ask
Ashton Holmes. In the mid-season finale, "All The Way," she ended up killing his character Thom (accidentally) and setting him up to take the fall as Division's mole. Talk about a heartbreaker.

Thad Luckinbill, who plays Alex's new love interest Nathan, tell
Zap2it that after her watched the episode he texted Fonseca to say,"'Oh, that's how you treat your love interests? Great!'"

Luckinbill makes his first appearance in tonight's (Jan. 27) episode, "Free," and plays Alex's new neighbor now that she's been activated to a full-blown agent and is living on her own. Luckinbill says Nathan will have questions about Alex from the very start. "He definitely sees there are some serious questions about who is this person?"

One thing Nathan has going for him is that he's not part of Division. (then again, they have killed their fair share outsiders.) "He's a really nice normal guy. I think that's what is interesting to Alex is first of all, why he's so nice, but also that he kind of represents this new world that she's been placed into, you know, things she doesn't really know about that most of Nathan-type people do," Luckinbill explains. "It's kind of interesting for her to meet somebody who is not like all the other people she's been around since the start of the show."

Fonseca adds, "Alex doesn't know what to do with it at first. It's unlike anything else, but I think ultimately I think that's why she really likes him. He's someone stable and true." Luckinbill tells us, "He's her first real friend really outside of this Division world and Nikita (
Maggie Q)." All together now: Aw!

Nathan won't be Alex's little secret from Division for long and fans can expect some fun scenes between Nathan and Michael (
Shane West) in the Feb. 3 episode "Coup De Grace." "There's a really fun scene between Michael, Alex and Nathan which is really awkward but it's also a fun teaser 'because he learns a lot of stuff just in that exchange of what's going on and it's a really funny scene. There's a few scenes actually," Luckinbill teases. He also reveals there's a "really fun" scene coming up between Nathan and Nikita.

We're assuming Nikita is going to wary of Alex and Nathan's relationship considering Division had her fiance, Daniel, killed and seems to like eliminating any distractions in their agents' lives. Luckinbill says Nathan hasn't been in any danger yet but knows that could change pretty quickly on this show. "That's always a possibility and I think that's an inherit risk. Even in the first episode they talk about how you can't have friends or relationships on the outside because it's too dangerous. There's definitely a risk."

On a show like "Nikita" where it seems like every character is keeping a secret, we asked Luckinbill if he thinks Nathan maybe isn't as normal as he seems. "There's always a possiblity. A show like that you gotta imagine everybody's got a secret," he says. "I would love to find out if Nathan has any or what they are."

This isn't the first time Fonseca and Luckinbill have worked together or played love interests. The two played young couple J.T. and Colleen on
"The Young and the Restless" from 2001 to 2004 before Fonseca left the show.

So what was it like working together again? "It's fantastic. She's been a great friend over the years and our stuff that we did when we were younger was awesome," Luckinbill says. "We kind of just picked up where we left off. It's really fun to get back working with her again."

He continues, "We've had some funny underage jokes because she was under 18 the first time we worked together for at least part of the stuff. It probably sounds pretty strange to crew members who don't know the story."

While Luckinbill hasn't been made a "Nikita" regular yet, he isn't at all opposed to the idea of sticking around. "If they want me to stay on I'd be more than happy to. It's a beautiful show and it's really fun to be a part of."
Catch "Nikita's" all-new episode "Free" Thursday, Jan. 27, at 9 p.m. ET on The CW.